Home / 55,661.12-83,524.44-20,625.20

Finding the Fourth Proportional to 55,661.12, 83,524.44 and 20,625.20

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Solution

The fourth proportional to 55,661.12, 83,524.44 and 20,625.20 is: 30,949.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,661.12 : 83,524.44 = 20,625.20 : x
  2. Step 2: Convert to fraction form
    55,661.12/83,524.44 = 20,625.20/x
  3. Step 3: Cross multiply
    55,661.12x = 83,524.44 × 20,625.20
  4. Step 4: Simplify right side
    55,661.12x = 1,722,708,279.89
  5. Step 5: Solve for x
    x = 1,722,708,279.89/55,661.12
  6. Step 6: Final answer
    x = 30,949.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.